
Starting at the fork near the Valasco Refuge, the route follows former military road 452 "Pian del Valasco - Lower Lake Valscura", built in the early thirties to serve the Valscura defense system. In order to make it possible to drive transport vehicles on the road, which was not much more than a wide mule track, much of the 1909 military road had to be expanded, being too narrow to meet the new needs.